blocking an ip address

cisco 2651XM router IOS: c2600-adventerprisek9-mz.124-15.T8.bin

I know that to block an ip address it's: access-list deny ip any host

and then on the ouside interface it's: ip access-group out

this works for blocking my access to but would this config stop an outside hacker at from getting in?

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Posted 5 years ago by tg in Cisco Systems

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